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according to fire safety regulations, the maximum angle of elevation for another rescue ladder is 73*. This rescue ladder is 40m long. What is the closest the foot of this ladder can be placed from the burning building?

Guest Jun 1, 2017
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The distance is given by

 

40* cos (73°) ....  no closer than  ≈  11.7  ft

 

 

cool cool cool

CPhill  Jun 1, 2017

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